Help keep the rear of your BMW riding quietly and solidly connected with the Westar rear suspension strut mount, part number ST-3921. It fits many BMW vehicles as a direct-fit replacement, among them the 1998-2000 BMW 528i, the 1996-2003 BMW Passenger Car and the 2001-2003 BMW 525i; see the "Vehicles it fits" section for the full list.
The strut mount secures the top of the rear strut to the vehicle body and helps isolate road noise and vibration from the cabin. Westar aims to deliver a top-quality strut mount at a competitive price.
Signs a rear strut mount may need replacing include clunking or knocking from the rear over bumps, increased road noise or vibration, and a visibly worn or separated mount. Other suspension components can cause similar symptoms, so diagnose the cause before replacing. Engine-specific fitment details are listed in the "Vehicles it fits" section.
Interchange: 703921 · 143262 · SM5251 · K90272 · SM7340 · 903921
This part cross-references / interchanges with the following part numbers:
Which vehicles does the Westar ST-3921 fit?
It fits many BMW vehicles, among them the 1998-2000 BMW 528i, 1996-2003 BMW Passenger Car and 2001-2003 BMW 525i. See the "Vehicles it fits" section for the full list and engine details.
Is this a front or rear strut mount?
The ST-3921 is cataloged for the rear strut position on the listed BMW applications.
What does a strut mount do?
It attaches the top of the strut to the vehicle body and helps isolate road noise and vibration from the cabin.
What are signs of a worn rear strut mount?
Common signs include clunking or knocking from the rear over bumps, extra road noise or vibration, and a visibly worn mount. Diagnose first, since other suspension parts can cause similar noises.
What part numbers does the ST-3921 interchange with?
It interchanges with 703921, 143262, SM5251, K90272, SM7340, and 903921.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
